Influence of Mn2+-substitution on the structural, morphological and magnetic properties of Co2Y strontium hexaferrites. (2022)

• Record Type: Journal Article
• Authors: Mohammed, Ibrahim; Mohammed, J.; Sharma, Anjori; Mahajan, Hamnesh; Kaur, Amarjeet; Srivastava, A.K.
• Is Part Of: Materials today. Volume 61:Part 3(2022)
• Page Start: 1158
• Page End: 1162
• Publication Date: 2022
• Subjects: Y-type hexaferrites -- Coercivity -- Saturation magnetization -- Remnant magnetization -- Morphology; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2021.12.514
• Languages: English
• ISSNs: 2214-7853

Abstract

Highlights: Single phase Mn 2+ -substituted Co2 Y strontium hexaferrites. Hexaferrites characteristics absorption bands at 422 and 580 cm −1 . Mn 2+ -substituted Co2 Y strontium hexaferrites exhibit single magnetic domain. Abstract: This research focus on using sol-gel auto combustion method to synthesize Co2 Y strontium hexaferrite with chemical composition Sr2 MnX Co2-x Fe12 O22 (x = 0.0, 0.5, 1.0). Samples were calcinated at 1150 for 6 h. The XRD analysis revealed a single crystalline phase Co2 Y strontium hexaferrites with the absence of secondary phase or impurity. Values of lattice parameters as well as unit cell volume rise with addition of Mn 2+ . The emergence of two peaks at 422 and 580 cm −1 in FTIR analysis suggests the formation of hexaferrites. The morphological analysis show an agglomerated network of grains which is caused by magnetic interaction. EDX spectra shows the entire host as well as substituted elements, this confirm the purity and stoichiometry of the prepared Co2 Y strontium hexaferrites samples. Magnetic parameters: coercivity, saturation magnetization, squareness ratio as well as remnant were calculated using M-H hysteresis loop obtained from the VSM.